Unit7 The natural world welcome to the unit ～Grammar课时练习 2025-2026学年译林版英语八年级上册

2025-2026年译林8AUnit7 The natural world课时练习 Welcome to the unit-Grammar 一、单项填空 1. The ocean is just like the “ ____ ” of the earth. A. heart B. kidney C. lung D. liver 2. If you feel ____ in sadness, it’ll be much better to have fun outdoors. A. interested B. closed C. broken D. trapped 3. —As we all know, land may become desert and no longer ____ plants. —So China plants trees in the desert areas, which can ____ the water from washing the earth away. A. supports；protect B. support；prevent C. supports；prevent D. support；protect 4. This nature reserve is ____ over eight hundred kinds of animals and plants. A. home to B. home as C. homes of D. homes for 5. ____ the teachers at our school is about 100, and half of them ____ women teachers. A. A number of；is B. The number of；is C. The number of；are D. A number of；are 6. This term, we are ____ interested in Geography ____ we can learn it well. A. too；to B. enough；to C. so；that D. such；that 7. In Geography classes, we learn much about the rivers, seas, mountains, ____ of the world. A. history B. climate C. culture D. temperature 8. The Great Barrier Reef lies ____ the north-east coast of Australia. A. on B. in C. at D. off 9. Why not play some ____ music, cook some delicious food and enjoy the wonderful holiday together? A. important B. polite C. lively D. elder 10. Photosynthesis (光合作用) is a process of ____ carbon dioxide and ____ oxygen. A. taking in；producing B. taking out；producing C. taking in；produce D. taking out；produce 11. There is still much to discuss. ____ , we shall return to this topic at our next meeting. A. Therefore B. Otherwise C. However D. Moreover 12. —Jack, I hear we’ll have ____ English and Maths this term. —Yes. I knew about them from our Maths teacher. A. a month’s test in B. month’s tests in C. monthly tests on D. the monthly test on 13. “Old habits die hard.” is a proverb in English. It means ____ . A. It’s easy for people to have good habits B. bad habits are hard to get rid of C. you will die if you have old habits D. bad habits are hard to form 14. Smoking can ____ damage your health. A. comfortably B. seriously C. importantly D. successfully 15. —It’s said that we can lose weight easily by taking a kind of medicine. — ____ Remember that any medicine may do harm to your health. A. I agree with you. B. I hope so. C. That’s not the case. D. Believe it or not. 【答案】ADBAC CBDCA ACBBC 二、完形填空 My family had never done anything different before. So when Aunt Jen invited us to her __16__ spring farm party, I was really excited. I decided to make the day special, so I baked cupcakes for the party and decorated them to look like soft sheep by using some __17__ . “Yummy!” My sister Indi said with a laugh, quickly stealing a candy. “That’s enough, Indi! I need those for my sheep!” “Do real sheep eat these?” “They’re just for making the cupcakes look __18_ !” I laughed too. Soon, Indi and my brother Tex joined in. They __19__ so many candies that their cupcakes looked more like strange animals than my sheep. “Time to go now,” Dad announced. But things didn’t go __20__ as usual. First, Tex couldn’t find his shoes. Then Mom realized she’d __21__ her wallet at home. Halfway to Aunt Jen’s, Indi suddenly needed a bathroom. We had to take a long way to find one. Dad then __22__ a new back road, but it only led us farther away. As we were in the middle of nowhere, our car started making a strange noise and __23__ . “Help won’t come for at least an hour,” Mom said, sounding __24__ . “Now we’ll __25_ the whole party!” Tex complained. Dad smiled and pointed to a field full of colorful flowers. “Why not have our own picnic here?” At first, we weren’t excited about it, but as we __26__ the blanket and started eating, something amazing happened. A huge butterfly gently landed on Indi’s knee. Nearby, two small rabbits __27__ across the grass, happily eating. Suddenly, we heard a loud rustling, and hundreds of birds shot up from the trees, flying into the sky in huge circles above us. “Wow!” I cried. “It’s like __28__ !” “Migration (迁徙) season,” Dad said. “These birds travel through California every spring — millions of them!” We never made it to Aunt Jen’s farm, __29__ that didn’t matter. Sitting in that field, enjoying my cupcakes under the open sky, I understood something important: when things don’t work out, disappointments may __30__ unexpected wonders. Keep your eyes open, and you might find joy right under your nose! 16. A. daily B. weekly C. monthly D. yearly 17. A. candies B. bananas C. tomatoes D. flowers 18. A. fresh B. cute C. clear D. sweet 19. A. bought B. made C. added D. ordered 20. A. badly B. freely C. quietly D. smoothly 21. A. found B. left C. brought D. checked 22. A. tried B. marked C. developed D. repaired 23. A. appeared B. arrived C. stopped D. dropped 24. A. excited B. tired C. relaxed D. surprised 25. A. change B. guide C. share D. miss 26. A. spread out B. handed out C. cut out D. carried out 27. A. rode B. flew C. jumped D. climbed 28. A. wind B. magic C. music D. fog 29. A. and B. or C. but D. so 30. A. hide B. lose C. forget D. avoid 【答案】DABCD BACBD ACBCA 【解析】 16. 考查形容词。句意：所以当珍阿姨邀请我们参加她一年一度的春季农场派对时，我非常兴奋。A. daily日常的；B. weekly每周的；C. monthly每月的；D. yearly每年的。根据“spring farm party（春季农场派对）”及常识可知，春季相关的派对通常是“一年一度的”。故选D。 17. 考查名词。句意：我决定让这一天变得特别，所以我为派对烤了纸杯蛋糕，并用一些糖果把它们装饰得看起来像柔软的绵羊。A. candies糖果；B. bananas香蕉；C. tomatoes西红柿；D. flowers花朵。根据后文“so many candies that their cupcakes looked more like strange animals than my sheep（这么多糖果，他们的纸杯蛋糕看起来更像是奇怪的动物，而不是我的绵羊。）”可知，是用糖果装饰纸杯蛋糕。故选A。 18. 考查形容词。句意：它们只是为了让纸杯蛋糕看起来可爱！A. fresh新鲜的；B. cute可爱的；C. clear清晰的；D. sweet甜的。根据前文“I baked cupcakes for the party and decorated them to look like soft sheep（我为派对烤了纸杯蛋糕，并把它们装饰得看起来像柔软的绵羊）”可知，把纸杯蛋糕装饰成绵羊的样子是为了让它看起来可爱。故选B。 19. 考查动词。句意：他们加了这么多糖果，他们的纸杯蛋糕看起来更像是奇怪的动物，而不是我的绵羊。A. bought买；B. made制作；C. added添加；D. ordered订购。根据后文“so many candies that their cupcakes looked more like strange animals than my sheep（这么多糖果，他们的纸杯蛋糕看起来更像是奇怪的动物，而不是我的绵羊。）”可知，是往纸杯蛋糕上添加了很多糖果。故选C。 20. 考查副词。句意：但事情并没有像往常一样顺利进行。A. badly糟糕地；B. freely自由地；C. quietly安静地；D. smoothly顺利地。根据后文“First, Tex couldn’t find his shoes. Then Mom realized she’d __21__ her wallet at home. Halfway to Aunt Jen’s, Indi suddenly needed a bathroom.（首先，泰克斯找不到他的鞋子。然后妈妈意识到她把钱包落在家里了。在去珍阿姨家的半路上，英迪突然需要上厕所。）”可知，事情进展不顺利。故选D。 21. 考查动词。句意：然后妈妈意识到她把钱包落在家里了。A. found找到；B. left留下，遗忘；C. brought带来；D. checked检查。根据“her wallet at home（她的钱包在家）”可知，是把钱包落在家里了，leave sth. at sp. 表示“把某物落在某地”。故选B。 22. 考查动词。句意：爸爸随后尝试了一条新的小路，但它只让我们离目的地更远了。A. tried尝试；B. marked标记；C. developed开发；D. repaired修理。根据“a new back road（一条新的小路）”可知，是“尝试”走一条新的小路。故选A。 23. 考查动词。句意：当我们在荒郊野外时，我们的车开始发出奇怪的声音，然后停了下来。A. appeared出现；B. arrived到达；C. stopped停止；D. dropped掉落。根据“our car started making a strange noise（我们的车开始发出奇怪的声音）”以及后文“Help won’t come for at least an hour（至少要一个小时才会有救援）”可知，车是停了下来。故选C。 24. 考查形容词。句意：“至少要一个小时才会有救援，”妈妈说，听起来很疲惫。A. excited兴奋的；B. tired疲惫的；C. relaxed放松的；D. surprised惊讶的。结合前文一系列不顺的经历（找鞋、落钱包、绕路、车坏）以及救援要等很久可知，妈妈此时应是“疲惫的”。故选B。 25. 考查动词。句意：泰克斯抱怨道：“现在我们要错过整个派对了！”A. change改变；B. guide指引；C. share分享；D. miss错过。根据上文车坏了且救援来不了可知，他们会“错过”派对。故选D。 26. 考查动词短语。句意：起初，我们对这个提议并不兴奋，但当我们铺开毯子开始吃东西时，神奇的事情发生了。A. spread out铺开；B. handed out分发；C. cut out切断；D. carried out执行。根据空后“we __26__ the blanket（我们……毯子）”可知，此处指“铺开”毯子准备野餐。故选A。 27. 考查动词。句意：附近，两只小兔子跳过草地，开心地吃着。A. rode骑；B. flew飞；C. jumped跳；D. climbed爬。根据句意结合常识可知，兔子是在草地上跳着移动。故选C。 28. 考查名词。句意：“哇！”我喊道。“这就像魔法一样！”A. wind风；B. magic魔法；C. music音乐；D. fog雾。根据前文描述的蝴蝶落在膝盖上、兔子蹦跳、百鸟齐飞等神奇场景可知，此处指像“魔法”一样。故选B。 29. 考查连词。句意：我们最终没能去成珍阿姨的农场，但那没关系。A. and和；B. or或者；C. but但是；D. so所以。前文“没去成农场”与后文“那没关系”之间是转折关系，应用“but（但是）”连接。故选C。 30. 考查动词。句意：当事情没有如愿时，失望中可能隐藏着意想不到的惊喜。A. hide隐藏；B. lose失去；C. forget忘记；D. avoid避免。根据空后“unexpected wonders（意想不到的惊喜）”及语境可知，惊喜可能“隐藏”在失望之中。故选A。 三、阅读理解 A Hard water has higher amounts (量) of Ca2+ and Mg2+, so it’s more difficult to get things clean when you are washing in hard water. We are sharing two ways to check whether you are using hard water at home. Method 1: Soap (肥皂) Test Step 1: Choose a clear instead of covered bottle so that you can notice the changes during the test. Step 2: Fill half of the bottle with water. Step 3: Add 10 drops of liquid (液体) soap to the bottle. Step 4: Cap the bottle and shake it for a few seconds. Step 5: Open the bottle and check the bubbles (泡沫) at the top of the water. This method will only give you an idea of whether the water you are using is hard or soft. You won’t be able to know the exact (精确的) degree of hardness of the water. But the fewer the bubbles you can see, the harder the water is. Method 2: Hard Water Test Strips (试纸) Put the strip into the water sample (样本) for 2 seconds and take it out right away. Hold the strip for 30 seconds. Compare (比较) the test strip color with the color chart (比色图标) on the bottle label. Although the result is not as dependable (可靠的) as the lab test, the color chart can tell you the water hardness based on (以…为基础) the color. If you now know that the water that you are using is hard, you should consider taking action to change hard water into soft one. The most chosen way is to fix a hard water softener (软化器). You can check out the list of our best-selling water softeners for bathrooms and washing machines by clicking here. 1. Why is a clear instead of covered bottle needed in the soap test? A. Because light is needed during the test. B. Because a clear bottle may show more bubbles. C. Because you can notice the changes during the test. D. Because a covered bottle may have lots of Ca2+ and Mg2+. 2. How does the number of bubbles change with water hardness in the soap test? (x=the bubbles, y=how hard the water is) A. B. C. D. 3. What can you see when using hard water strips? A. The change of the water. B. The color of the water softener. C. The amount of the bubbles. D. The color on the strips. 4. What should you do if you find the water you are using is hard,according to the text? A. Call the water company. B. Cook the water before using it. C. Fix a hard water softener. D. Use soap to soften the water. 5. Where may the text be from? A. A study about hard water. B. A website for selling water softeners. C. A book about science tests. D. A poster for selling hard water test strips. 【答案】CDDCB 【解析】文章介绍了硬水的特点，并分享了在家检测硬水的两种方法，还提及若检测出是硬水可采取安装硬水软化器等措施。 1. 题干意思：在肥皂测试中，为什么需要使用透明的瓶子而不是有盖的瓶子？A. 因为测试过程中需要光线；B. 因为透明的瓶子可能会显示更多的气泡；C. 因为你可以在测试过程中注意到变化；D. 因为有盖的瓶子可能含有大量的Ca2+和Mg2+。根据表格中“Step 1: Choose a clear instead of covered bottle so that you can notice the changes during the test.（第一步：选择一个透明的瓶子，而不是有盖子的瓶子，这样在测试过程中你就能注意到变化。）”可知，选择透明瓶子是为了能在测试过程中看到瓶子里发生的变化。故选C。 2. 题干意思：在肥皂测试中，气泡的数量是如何随水硬度变化的？（x代表气泡，y代表水的硬度）根据表格中“But the fewer the bubbles you can see, the harder the water is.（但是你能看到的气泡越少，水就越硬。）”可知，泡沫越多，水的硬度越小，D选项的图像能体现这种关系。故选D。 3. 题干意思：使用硬水试纸时，你能观察到什么？A. 水质的变化；B. 软水器的颜色；C. 气泡的数量；D. 试纸上的颜色。根据表格中“Compare (比较) the test strip color with the color chart (比色图标) on the bottle label.（将试纸上的颜色与瓶子标签上的比色图标进行对比。）”以及“Although the result is not as dependable (可靠的) as the lab test, the color chart can tell you the water hardness based on (以…为基础) the color.（虽然结果不如实验室测试那么可靠，但比色图表可以根据颜色告诉你水的硬度。）”可知，用硬水测试条时，测试条上的颜色能显示结果。故选D。 4. 题干意思：根据文中所述，如果发现所用的水是硬水，你应该怎么做？A. 联系供水公司；B. 在使用前将水煮沸；C. 安装硬水软化器；D. 用肥皂来软化水。根据表格中“If you now know that the water that you are using is hard, you should consider taking action to change hard water into soft one. The most chosen way is to fix a hard water softener (软化器).（如果您现在知道所用的水是硬水，就应该考虑采取措施将硬水软化。最常用的方法是安装一个硬水软化器。）”可知，如果发现使用的是硬水，可通过安装硬水软化器来改善。故选C。 5. 题干意思：这段文字可能出自何处？A. 一项关于硬水的研究；B. 一个销售软水器的网站；C. 一本关于科学实验的书；D. 一张销售硬水测试条的海报。根据表格中“You can check out the list of our best-selling water softeners for bathrooms and washing machines by clicking here.（您可以点击此处查看我们浴室和洗衣机专用畅销软水器的清单。）”可知，文章可能来自销售硬水软化器的网站。故选B。 B Cold air swept across the north part of China in the first week of November. At the same time, a global (全球的) meeting on climate change was held in Scotland. There, leaders around the world tried to control global warming. Why are we experiencing such a cold winter on a warming planet? The cold winter and global warming, two opposite (对立的) facts, are not contradictory. Because of the warming climate, the temperature in winter in China has risen by 0.41℃ every ten years since 1961. But in some places, it has also been pretty low. Global warming has changed Earth’s air circulation (循环) and the weather. For example, in October, La Nina affected China. It was caused by strong winds from the Pacific Ocean. __▲__ Another reason for the cold weather is the warming Arctic (北极). It is warming almost three times as fast as any other places on Earth. Will the winter be much colder? It’s reported that a cold winter is likely. Northern China will probably see more snow, and southern China will see less rain. 1. Why did the leaders from the world come to Scotland to have a meeting? A. To discuss the reasons for cold weather. B. To try to deal with global warming. C. To discuss the results of cold weather. D. To discuss the reasons for global warming. 2. What does the underlined word “contradictory” mean? A. Almost the same. B. A fact or opinion is real. C. Used to say that a situation has not changed. D. Having information that disagrees with other information. 3. Which of the following can show the relationship between the year (x) and the degree of temperature growth (y) since 1961? A. y=0.41 B. y=0. 41/ C. D. 4. What caused La Nina according to the passage? A. The heavy snow. B. The warm air. C. The strong winds. D. The cold weather. 5. Which of the following sentences can be put in “ __▲__ ” in Paragraph 4? A. It brought more cold air to China. B. It brought more warm air to China. C. It was a kind of common weather. D. It made the temperature rise quickly. 【答案】BDCCA 【解析】 1. 题干意思：世界各国领导人为什么来苏格兰开会？A. 讨论寒冷天气的原因；B. 尝试应对全球变暖；C. 讨论寒冷天气的结果；D. 讨论全球变暖的原因。根据第1段“There, leaders around the world tried to control global warming.（在那里，世界各国领导人试图控制全球变暖。）”可知，世界各国领导人在苏格兰开会的目的是应对全球变暖的问题；结合选项，故选B。 2. 题干意思：划线单词“contradictory”是什么意思？A. 几乎相同；B. 一个事实或观点是真实的；C. 用来表示一种情况未曾改变；D. 拥有与其他信息不一致的信息。根据第2段“The cold winter and global warming, two opposite (对立的) facts, are not contradictory.（寒冷的冬天与全球变暖，这两者看似截然相反，但实际上并不矛盾。）”可知，寒冷的冬天和全球变暖是两个相反的事实；由划线词前的“not”可知，这两个相反的事实并不是对立的；所以划线单词“contradictory”意思是“相互矛盾的，与……不一致的。”故选D。 3. 题干意思：以下哪一项能够展示自 1961 年以来年份（x）与气温增长程度（y）之间的关系？根据第3段“Because of the warming climate, the temperature in winter in China has risen by 0.41℃ every ten years since 1961.（由于气候变暖，自1961年以来，中国冬季气温每十年上升0.41℃。）”可知，自1961年以来，中国每十年冬天的平均温度增加了0.41°C。则自1961年以来的年份差为x-1961；年份和温度增长之间的关系为。故选C。 4. 题干意思：根据这篇文章，拉尼娜现象是由什么引起的？A. 降雪量大；B. 温暖的空气；C. 强劲的风；D. 寒冷的天气。根据第4段“For example, in October, La Nina affected China. It was caused by strong winds from the Pacific Ocean.（例如，10月，拉尼娜现象现象影响了中国。这是由太平洋的强风造成的。）”可知，拉尼娜现象是由来自太平洋的强风引起的。故选C。 5. 题干意思：在第4段中，“ __▲__ ”处应填入以下哪一句？A. 它给中国带来了更多的冷空气；B. 它给中国带来了更多的暖空气；C. 这是一种常见的天气现象；D. 它使气温迅速上升。根据第5段“Another reason for the cold weather is the warming Arctic (北极).（天气寒冷的另一个原因是北极变暖。）”可知，空处是引起寒冬的一个原因；再根据空前“It was caused by strong winds from the Pacific Ocean.（它是由来自太平洋的强风引起的。）”可推知，太平洋的强风给中国带来了更多的冷空气。故选A。 C People depend on road signs to know where they are and to reach the places they want. But by following signs saying “Forbidden City” and “Sino-Japanese” Hospital, visitors to Beijing may have a hard time finding their way to the Forbidden City and the China-Japan Hospital. “They guided people incorrectly. Some foreign tourists complained that some of these signs prevented them from knowing where they were. To make things worse, they forgot the fact that Beijing is an international city,” said Li Honghai at the Fourth Meeting of the Beijing Speaks English Programme Committee (委员会). At this meeting, correcting mistakes on road signs became the centre of the discussions. Last month, all areas in the capital were asked to check their English road signs. The checks mainly cover areas with many foreigners, such as scenic spots, transit routes, and large hotels. Besides Beijing municipal government, citizens (市民) and foreign tourists also joined in the activity. “Many Beijingers phoned or emailed us the mistakes they had found. Their work helped us a lot,” said Zhang Mao, Vice Mayor of Beijing. Most mistakes are caused by poor translation (翻译). Sometimes the language workers themselves don’t fully understand the signs. Moreover, there is no translation standard to learn. “We asked some foreigners to translate some pavilions (阁) in the Forbidden City. Their translations were all grammatically correct so we didn’t know which one to choose. If there was a standard to follow, it would be much easier,” said Xiong Yumei, deputy director of the Beijing Tourism Administration. To solve this problem, people in Beijing asked the government to set up a standard as soon as possible. Now the committee is organizing a group of experts (专家) both from home and abroad to set up and improve such standards. What’s more, the committee will work with other governments to improve English levels of the citizens. More English training programmes and activities will be offered to make people more interested in learning English. 1. How does the writer introduce road signs in paragraph 1? A. By telling a joke in Beijing. B. By showing an example in Beijing. C. By explaining a fact in Japan. D. By discussing a problem in Japan. 2. What is the Chinese meaning of the underlined word “standard”? A. 意见 B. 方法 C. 水平 D. 标准 3. The following all took part in correcting mistakes on road signs EXCEPT ____ . A. local people B. tourists abroad C. foreign teachers D. Beijing government 4. What is the main idea of the last paragraph? A. What the mistakes on road signs are. B. Why the mistakes on road signs happen. C. Where the mistakes on road signs can be seen. D. How the mistakes on road signs can be solved. 5. Which of the following is TRUE according to the passage? A. All road signs in Beijing prevented tourists knowing where they were. B. Foreign tourists didn’t know the fact that Beijing is an international city. C. Only some parts in Beijing were asked to check their English road signs. D. Many local people in Beijing helped correct signs by calling or emailing. 【答案】BDCDD 【解析】这篇短文主要讲述了人们在北京旅游时遇到的道路标志错误问题。 1. 题干意思：作者在第 1 段中是如何介绍交通标志的？A. 通过讲述一个在北京发生的笑话；B. 通过展示一个在北京的例子；C. 通过解释一个在日本的事实；D. 通过讨论一个在日本的问题。根据第一段“People depend on road signs to know where they are and to reach the places they want. But by following signs saying “Forbidden City” and “Sino-Japanese” Hospital, visitors to Beijing may have a hard time finding their way to the Forbidden City and the China-Japan Hospital.（人们依靠路标来知道自己在哪里，并到达他们想要的地方。但是，按照‘紫禁城’和‘中日医院’的指示牌，来北京的游客可能很难找到去紫禁城和中日医院的路。）”可知作者第1段中在北京举例介绍路标。故选B。 2. 题干意思：划线单词“standard”的中文意思是？根据第5段“Sometimes the language workers themselves don’t fully understand the signs. Moreover, there is no translation standard to learn.（有时语言工作者自己并不完全理解这些迹象。此外，没有可学习的翻译……）”可知“standard”的意思为“标准”。故选D。 3. 题干意思：题干意思：以下所有人员都参与了纠正路标上的错误，除了____。A. 当地居民；B. 外国游客；C. 外国教师；D. 北京政府。根据第4段“Besides Beijing municipal government, citizens (市民) and foreign tourists also joined in the activity.（除了北京市政府之外，市民和外国游客也参与了这项活动。）”可知除了外国教师所有人都参加了纠正路标错误的活动。故选C。 4. 题干意思：最后一段的主要观点是什么？A. 路牌上的错误是什么；B. 路牌上的错误为何会发生；C. 路牌上的错误出现在哪里；D. 路牌上的错误如何解决。根据最后一段“To solve this problem, people in Beijing asked the government to set up a standard as soon as possible. Now the committee is organizing a group of experts (专家) both from home and abroad to set up and improve such standards.（为了解决这个问题，北京人民要求政府尽快制定一个标准。现在，该委员会正在组织一个来自国内外的专家小组来建立和改进这些标准。） ”可知最后一段讲如何解决路标上的错误。故选D。 5. 题干意思：根据这篇文章，以下哪一项是正确的？A. 北京所有的路标都让游客无法知晓自己所处的位置；B. 外国游客并不知道北京是一个国际城市这一事实；C. 只有北京的一些区域被要求检查其英文路标；D. 许多北京当地居民通过打电话或发电子邮件的方式帮助修正路标。根据第4段“Many Beijingers phoned or emailed us the mistakes they had found. Their work helped us a lot（许多北京人给我们打电话或发电子邮件，告诉我们他们发现的错误。他们的工作对我们帮助很大。）”可知北京的许多当地人通过打电话或发电子邮件来帮助纠正标志。故选D。 D There are 8 billion humans on Earth. The sun is 150 million kilometers away. The universe (宇宙) may have 200 billion trillion (万亿) stars… As scientists explore the world with more and more advanced (先进的) tools, the numbers used are also becoming bigger. Recently, scientists added four new names for really big and really small measurements (度量): ronna (1027), quetta (1030), ronto (10-27) and quecto (10-30) . Do you find these numbers too big to make sense (有意义)? Don’t worry. Almost all human brains have a problem dealing with big numbers. “While living and evolving (进化), our ancestors (祖先) had no need to develop such a skill,” US mathematician Spencer Greenberg told the science website Gizmodo. Early humans only needed to understand small quantities (数量), like the number of people in the clan (族群), or how many animals they had caught. “So it’s not important to differentiate large from very large from an evolutionary perspective (进化的角度).” However, there are some methods that can help us better understand big numbers. One way is to turn big numbers into something you are familiar with. For example, if imagining 400,000 people is too hard, you can think that an average soccer stadium can hold around 40,000 people. Then 400,000 people mean 10 soccer stadiums of people. Or if you have 1,000 yuan, then a millionaire (百万富翁) has 1,000 times more money than you. Needless to say, there are limits to these methods. “This is why we often just ‘do the math’,” said Greenberg. “We can work with large numbers in calculations and get useful answers. We just can’t necessarily understand the numbers throughout that process.” 1. What might one quetta refer to? A. One followed by 30 zeros. B. A decimal point (小数点) followed by 26 zeros. C. One followed by 27 zeros. D. A decimal point (小数点) followed by 29 zeros. 2. According to Paragraph 3, we can learn that ____ . A. there were no large numbers in ancient times B. ancient people didn’t need to understand big numbers C. human brains don’t have a problem dealing with big numbers D. big numbers appear throughout human evolution 3. According to the story, we can understand big numbers by ____ . A. comparing the numbers to money B. imagining how many people there are on Earth C. thinking about how many soccer stadiums we have D. turning them into something we are familiar with 4. What can we infer from the story? A. Math is the best subject for us to understand the world. B. People cannot understand numbers by doing calculations. C. Extremely large numbers cannot be calculated. D. Calculations help us deal with large numbers. 【答案】ABDD 【解析】本文是一篇说明文，主要介绍了随着科学家探索世界的工具越来越先进，所使用的数字也变得越来越大，为此科学家新增了四个描述极大和极小度量的名称（ronna隆纳：表示数字后有27个零；quetta奎达：表示数字后有30个零；ronto伦托：表示小数点后有27个零；quecto奎克托：表示小数点后有30个零）。文章还探讨了人类大脑在处理大数字时存在困难的原因（祖先无需发展此类技能），并提出将大数字转化为熟悉事物的方法，同时指出计算在处理大数字过程中的作用。 1. 题干意思：“quetta”可能指的是什么？A. 1 后面跟30个0；B. 小数点后跟26个0；C. 1 后面跟27个0；D. 小数点后跟29个0。根据第2段“quetta (1030)”可知它指的是1后面30个0，A项符合文意。故选A。 2. 题干意思：根据第三段内容，我们可以得知 ____ 。A. 在古代，并没有大量使用数字；B. 古代的人们不需要理解大数字；C. 人类的大脑在处理大数字方面没有问题；D. 大数字贯穿了人类的进化历程。根据第3段“Early humans only needed to understand small quantities (数量), like the number of people in the clan (族群), or how many animals they had caught. “So it’s not important to differentiate large from very large from an evolutionary perspective (进化的角度).”（早期人类只需要了解较小的数，比如族群中的人数，或者他们捕获了多少动物。‘从进化的角度来看，区分大数和非常大的数并不重要。’）”可知古代人不需要理解大数。故选B。 3. 题干意思：根据这个故事，我们可以通过____来理解大数字。A. 将数字与金钱作比较；B. 想象地球上的人口数量；C. 思考我们有多少个足球场；D. 把它们转化为我们熟悉的事物。根据第4段“However, there are some methods that can help us better understand big numbers. One way is to turn big numbers into something you are familiar with. For example, if imagining 400,000 people is too hard, you can think that an average soccer stadium can hold around 40,000 people. Then 400,000 people mean 10 soccer stadiums of people. Or if you have 1,000 yuan, then a millionaire (百万富翁) has 1,000 times more money than you.（然而，有一些方法可以帮助我们更好地理解大数字。其中一种方法是将大数字转化为你熟悉的事物。例如，如果想象 40 万人太困难了，你可以这样想：一个普通的足球场大约能容纳 4 万人。那么 40 万人就相当于 10 个足球场那么多人。或者如果你有 1000 元，那么一位百万富翁拥有的钱就是你的一万倍。）”可知我们可以把大数变成我们熟悉的东西。故选D。 4. 题干意思：从这个故事中我们可以得出什么结论呢？A. 数学是我们理解世界的最佳工具；B. 人们无法通过计算来理解数字；C. 极其巨大的数字无法被计算出来；D. 计算能帮助我们处理巨大的数字。根据第5段“Needless to say, there are limits to these methods. “This is why we often just ‘do the math’,” said Greenberg. “We can work with large numbers in calculations and get useful answers. We just can’t necessarily understand the numbers throughout that process.”（不用说，这些方法都有局限性。格林伯格说：“这就是为什么我们经常只是‘做算术’，我们可以在计算中使用大量数据，并获得有用的答案。我们只是不一定能在整个过程中掌握这些数字。”）”可推知计算帮助我们处理大量的数字。故选D。 四、根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。 AI is becoming a big part of our lives. A study shows that many teenagers don’t see AI as just a tool. __1__________ When facing problems, they like to turn to AI for advice. Take 15-year-old Kayla Chege as an example. She asks AI for help with many things, like homework, what to wear, or party ideas! She says it feels like talking to a real friend. __2__________ Over 70% of teens use AI this way, with half using it very often. And 33% discuss (讨论) serious or important topics with AI instead of real people. __3__________ Some say they like AI because it listens patiently and never gets tired of them. Others enjoy how it gives quick answers without judging (评判) them. __4__________ “Using AI too much can be bad,” said Michael Smith, a teen health expert (专家). “Teens need to spend time with real people. If they only talk to AI, they might not be ready for real life. What’s worse, some AI tools can give bad advice. __5__________ ” So AI can be helpful, but real friendships are important too. Parents and teachers should help teens find a healthy balance. A. So why do teens choose AI? B. They see it as a true friend. C. It might be dangerous for teens. D. AI can help with homework and other tasks. E. Kayla is not alone. F. AI can make people feel good about themselves. G. However, experts are worried about this trend (趋势). 【答案】BEAGC 【解析】本文主要讲述了人工智能在青少年中越来越受欢迎，他们把人工智能看作真正的朋友，专家对这种趋势感到担忧，建议家长和老师帮助青少年找到一个健康的平衡。 1. 根据上文“A study shows that many teenagers don’t see AI as just a tool.（一项研究表明许多青少年并不认为人工智能仅仅是一种工具。）”以及下文“When facing problems, they like to turn to AI for advice.（当面对问题时，他们喜欢向人工智能寻求建议。）”可知，此处应是说青少年把人工智能看作什么，选项B“They see it as a true friend.（他们把它看作真正的朋友。）”符合语境。故选B。 2. 根据下文“Over 70% of teens use AI this way, with half using it very often.（超过70%的青少年这样使用人工智能，其中一半人经常使用。）”可知，使用人工智能的青少年不止凯拉一人，选项E“Kayla is not alone. （凯拉不是唯一。）”符合语境。故选E。 3. 根据下文“Some say they like AI because it listens patiently and never gets tired of them.（一些人说他们喜欢人工智能，因为它耐心倾听，从不厌倦他们。）”可知，此处是询问青少年为什么喜欢人工智能，选项A“So why do teens choose AI?（那么为什么青少年选择人工智能呢？）”符合语境。故选A。 4. 根据下文““Using AI too much can be bad,” said Michael Smith, a teen health expert (专家).（‘过度使用人工智能可能并非好事，’青少年健康专家迈克尔·史密斯说道。）”可知，专家们对这种趋势感到担心，选项G“However, experts are worried about this trend (趋势). （然而，专家们对这种趋势感到担忧。）”符合语境。故选G。 5. 根据上文“What’s worse, some AI tools can give bad advice.（更糟糕的是，一些人工智能工具可以给坏的建议。）”可知，人工智能可能对青少年有害，选项C“It might be dangerous for teens.（它可能对青少年有害。）”符合语境。故选C。 五、阅读下面短文，在空白处填入一个适当的单词或括号内单词的正确形式。 Tigers have bright eyes, yellow fur and black stripes. They look so beautiful and cute at __1__________ (born). They can move very fast. They are good at hunting other __2__________ (animal). Tigers like to live as __3__________ family, but baby tigers will live alone when they grow up. __4__________ (sad), tigers are facing a lot of serious problems. In the past, people __5__________ (cut) down large forests and built farms, so they lost much living space. Now, the number of tigers __6__________ (be) becoming smaller and smaller. If people keep taking their land, tigers will have no place __7__________ (live). Also, people kill them __8__________ their fur and bones to make money. If we do not help them, there will be no tigers left in the world. Can you imagine __9__________ will happen to them? Maybe they will die out in the future. A feeling of sadness comes over us when we think of this. I think if we give tigers more protected land and stop people from hunting them, they will live __10__________ (well) than before. Let’s act right now! 【答案】birth；animals；a；Sadly；cut；is；to live；for；what；better 六、阅读与表达。 Two weeks later, the children made another note. They held it up as The Green Dragon rushed past. The notice said, “MOTHER IS NEARLY WELL AGAIN. THANK YOU.” The old gentleman saw the notice. He smiled and waved to the children. When they told Mother about the old gentleman, she was very angry with them. “It was wrong to ask a stranger for help,” she said. Then, she stopped being angry and began to cry. The children thought this was worse. “I’m sorry I was angry with you,” she said. “I know you don’t really understand. We’re poor, but we have enough money for food. You must never ever again ask anyone to give you things.” The next day was Roberta’s birthday. Mother told her to go away and stay away until teatime. She felt very lonely in the garden, so she walked out of it and down the lane to the canal. While Roberta was standing on the bridge looking down at the barges (驳船), the doctor came up in his small horse and cart. “Hello, head nurse,” he said. “Do you want a ride home?” Roberta got into the cart and sat next to the doctor. Roberta let the doctor go on to his house and she stayed in the garden until teatime. When she went inside, there were twelve candles on the table, flowers, and some little parcels. As she walked into the room, Mother, Phyllis, and Peter sang a song to her. Mother wrote the words for a birthday song every year. Our darling Roberta No sorrow shall hurt her If we can prevent it Her whole life long. Her birthday’s our party day We’ll make it our great day And give her our presents And sing her our song At the end of the song, Mother said, “Three cheers for Roberta.” And she, Phyllis, and Peter shouted, “Hip! Hip! Hooray!” —Taken from The Railway Children 回答下面问题，每题答案不超过7个词。 1. Who did the children make a note to? ___________________________________________________________ 2.Why was Mother angry with the children? ___________________________________________________________ 3. Where did Roberta meet the doctor? ___________________________________________________________ 4. How old was Roberta? ___________________________________________________________ 5. According to the passage, what would Roberta probably do next? ___________________________________________________________ 【答案】1. The old gentleman. 2. Because they asked a stranger for help. 3. On the bridge. 4. She was twelve years old. 5. She would probably open her presents / blow out the candles / enjoy her birthday party./Thank them for writing and singing. 第 1 页 共 12 页 学科网（北京）股份有限公司 $ 2025-2026年译林8AUnit7 The natural world课时练习 Welcome to the unit-Grammar 一、单项填空 1. The ocean is just like the “ ____ ” of the earth. A. heart B. kidney C. lung D. liver 2. If you feel ____ in sadness, it’ll be much better to have fun outdoors. A. interested B. closed C. broken D. trapped 3. —As we all know, land may become desert and no longer ____ plants. —So China plants trees in the desert areas, which can ____ the water from washing the earth away. A. supports；protect B. support；prevent C. supports；prevent D. support；protect 4. This nature reserve is ____ over eight hundred kinds of animals and plants. A. home to B. home as C. homes of D. homes for 5. ____ the teachers at our school is about 100, and half of them ____ women teachers. A. A number of；is B. The number of；is C. The number of；are D. A number of；are 6. This term, we are ____ interested in Geography ____ we can learn it well. A. too；to B. enough；to C. so；that D. such；that 7. In Geography classes, we learn much about the rivers, seas, mountains, ____ of the world. A. history B. climate C. culture D. temperature 8. The Great Barrier Reef lies ____ the north-east coast of Australia. A. on B. in C. at D. off 9. Why not play some ____ music, cook some delicious food and enjoy the wonderful holiday together? A. important B. polite C. lively D. elder 10. Photosynthesis (光合作用) is a process of ____ carbon dioxide and ____ oxygen. A. taking in；producing B. taking out；producing C. taking in；produce D. taking out；produce 11. There is still much to discuss. ____ , we shall return to this topic at our next meeting. A. Therefore B. Otherwise C. However D. Moreover 12. —Jack, I hear we’ll have ____ English and Maths this term. —Yes. I knew about them from our Maths teacher. A. a month’s test in B. month’s tests in C. monthly tests on D. the monthly test on 13. “Old habits die hard.” is a proverb in English. It means ____ . A. It’s easy for people to have good habits B. bad habits are hard to get rid of C. you will die if you have old habits D. bad habits are hard to form 14. Smoking can ____ damage your health. A. comfortably B. seriously C. importantly D. successfully 15. —It’s said that we can lose weight easily by taking a kind of medicine. — ____ Remember that any medicine may do harm to your health. A. I agree with you. B. I hope so. C. That’s not the case. D. Believe it or not. 二、完形填空 My family had never done anything different before. So when Aunt Jen invited us to her __16__ spring farm party, I was really excited. I decided to make the day special, so I baked cupcakes for the party and decorated them to look like soft sheep by using some __17__ . “Yummy!” My sister Indi said with a laugh, quickly stealing a candy. “That’s enough, Indi! I need those for my sheep!” “Do real sheep eat these?” “They’re just for making the cupcakes look __18_ !” I laughed too. Soon, Indi and my brother Tex joined in. They __19__ so many candies that their cupcakes looked more like strange animals than my sheep. “Time to go now,” Dad announced. But things didn’t go __20__ as usual. First, Tex couldn’t find his shoes. Then Mom realized she’d __21__ her wallet at home. Halfway to Aunt Jen’s, Indi suddenly needed a bathroom. We had to take a long way to find one. Dad then __22__ a new back road, but it only led us farther away. As we were in the middle of nowhere, our car started making a strange noise and __23__ . “Help won’t come for at least an hour,” Mom said, sounding __24__ . “Now we’ll __25_ the whole party!” Tex complained. Dad smiled and pointed to a field full of colorful flowers. “Why not have our own picnic here?” At first, we weren’t excited about it, but as we __26__ the blanket and started eating, something amazing happened. A huge butterfly gently landed on Indi’s knee. Nearby, two small rabbits __27__ across the grass, happily eating. Suddenly, we heard a loud rustling, and hundreds of birds shot up from the trees, flying into the sky in huge circles above us. “Wow!” I cried. “It’s like __28__ !” “Migration (迁徙) season,” Dad said. “These birds travel through California every spring — millions of them!” We never made it to Aunt Jen’s farm, __29__ that didn’t matter. Sitting in that field, enjoying my cupcakes under the open sky, I understood something important: when things don’t work out, disappointments may __30__ unexpected wonders. Keep your eyes open, and you might find joy right under your nose! 16. A. daily B. weekly C. monthly D. yearly 17. A. candies B. bananas C. tomatoes D. flowers 18. A. fresh B. cute C. clear D. sweet 19. A. bought B. made C. added D. ordered 20. A. badly B. freely C. quietly D. smoothly 21. A. found B. left C. brought D. checked 22. A. tried B. marked C. developed D. repaired 23. A. appeared B. arrived C. stopped D. dropped 24. A. excited B. tired C. relaxed D. surprised 25. A. change B. guide C. share D. miss 26. A. spread out B. handed out C. cut out D. carried out 27. A. rode B. flew C. jumped D. climbed 28. A. wind B. magic C. music D. fog 29. A. and B. or C. but D. so 30. A. hide B. lose C. forget D. avoid 三、阅读理解 A Hard water has higher amounts (量) of Ca2+ and Mg2+, so it’s more difficult to get things clean when you are washing in hard water. We are sharing two ways to check whether you are using hard water at home. Method 1: Soap (肥皂) Test Step 1: Choose a clear instead of covered bottle so that you can notice the changes during the test. Step 2: Fill half of the bottle with water. Step 3: Add 10 drops of liquid (液体) soap to the bottle. Step 4: Cap the bottle and shake it for a few seconds. Step 5: Open the bottle and check the bubbles (泡沫) at the top of the water. This method will only give you an idea of whether the water you are using is hard or soft. You won’t be able to know the exact (精确的) degree of hardness of the water. But the fewer the bubbles you can see, the harder the water is. Method 2: Hard Water Test Strips (试纸) Put the strip into the water sample (样本) for 2 seconds and take it out right away. Hold the strip for 30 seconds. Compare (比较) the test strip color with the color chart (比色图标) on the bottle label. Although the result is not as dependable (可靠的) as the lab test, the color chart can tell you the water hardness based on (以…为基础) the color. If you now know that the water that you are using is hard, you should consider taking action to change hard water into soft one. The most chosen way is to fix a hard water softener (软化器). You can check out the list of our best-selling water softeners for bathrooms and washing machines by clicking here. 1. Why is a clear instead of covered bottle needed in the soap test? A. Because light is needed during the test. B. Because a clear bottle may show more bubbles. C. Because you can notice the changes during the test. D. Because a covered bottle may have lots of Ca2+ and Mg2+. 2. How does the number of bubbles change with water hardness in the soap test? (x=the bubbles, y=how hard the water is) A. B. C. D. 3. What can you see when using hard water strips? A. The change of the water. B. The color of the water softener. C. The amount of the bubbles. D. The color on the strips. 4. What should you do if you find the water you are using is hard,according to the text? A. Call the water company. B. Cook the water before using it. C. Fix a hard water softener. D. Use soap to soften the water. 5. Where may the text be from? A. A study about hard water. B. A website for selling water softeners. C. A book about science tests. D. A poster for selling hard water test strips. B Cold air swept across the north part of China in the first week of November. At the same time, a global (全球的) meeting on climate change was held in Scotland. There, leaders around the world tried to control global warming. Why are we experiencing such a cold winter on a warming planet? The cold winter and global warming, two opposite (对立的) facts, are not contradictory. Because of the warming climate, the temperature in winter in China has risen by 0.41℃ every ten years since 1961. But in some places, it has also been pretty low. Global warming has changed Earth’s air circulation (循环) and the weather. For example, in October, La Nina affected China. It was caused by strong winds from the Pacific Ocean. __▲__ Another reason for the cold weather is the warming Arctic (北极). It is warming almost three times as fast as any other places on Earth. Will the winter be much colder? It’s reported that a cold winter is likely. Northern China will probably see more snow, and southern China will see less rain. 1. Why did the leaders from the world come to Scotland to have a meeting? A. To discuss the reasons for cold weather. B. To try to deal with global warming. C. To discuss the results of cold weather. D. To discuss the reasons for global warming. 2. What does the underlined word “contradictory” mean? A. Almost the same. B. A fact or opinion is real. C. Used to say that a situation has not changed. D. Having information that disagrees with other information. 3. Which of the following can show the relationship between the year (x) and the degree of temperature growth (y) since 1961? A. y=0.41 B. y=0. 41/ C. D. 4. What caused La Nina according to the passage? A. The heavy snow. B. The warm air. C. The strong winds. D. The cold weather. 5. Which of the following sentences can be put in “ __▲__ ” in Paragraph 4? A. It brought more cold air to China. B. It brought more warm air to China. C. It was a kind of common weather. D. It made the temperature rise quickly. C People depend on road signs to know where they are and to reach the places they want. But by following signs saying “Forbidden City” and “Sino-Japanese” Hospital, visitors to Beijing may have a hard time finding their way to the Forbidden City and the China-Japan Hospital. “They guided people incorrectly. Some foreign tourists complained that some of these signs prevented them from knowing where they were. To make things worse, they forgot the fact that Beijing is an international city,” said Li Honghai at the Fourth Meeting of the Beijing Speaks English Programme Committee (委员会). At this meeting, correcting mistakes on road signs became the centre of the discussions. Last month, all areas in the capital were asked to check their English road signs. The checks mainly cover areas with many foreigners, such as scenic spots, transit routes, and large hotels. Besides Beijing municipal government, citizens (市民) and foreign tourists also joined in the activity. “Many Beijingers phoned or emailed us the mistakes they had found. Their work helped us a lot,” said Zhang Mao, Vice Mayor of Beijing. Most mistakes are caused by poor translation (翻译). Sometimes the language workers themselves don’t fully understand the signs. Moreover, there is no translation standard to learn. “We asked some foreigners to translate some pavilions (阁) in the Forbidden City. Their translations were all grammatically correct so we didn’t know which one to choose. If there was a standard to follow, it would be much easier,” said Xiong Yumei, deputy director of the Beijing Tourism Administration. To solve this problem, people in Beijing asked the government to set up a standard as soon as possible. Now the committee is organizing a group of experts (专家) both from home and abroad to set up and improve such standards. What’s more, the committee will work with other governments to improve English levels of the citizens. More English training programmes and activities will be offered to make people more interested in learning English. 1. How does the writer introduce road signs in paragraph 1? A. By telling a joke in Beijing. B. By showing an example in Beijing. C. By explaining a fact in Japan. D. By discussing a problem in Japan. 2. What is the Chinese meaning of the underlined word “standard”? A. 意见 B. 方法 C. 水平 D. 标准 3. The following all took part in correcting mistakes on road signs EXCEPT ____ . A. local people B. tourists abroad C. foreign teachers D. Beijing government 4. What is the main idea of the last paragraph? A. What the mistakes on road signs are. B. Why the mistakes on road signs happen. C. Where the mistakes on road signs can be seen. D. How the mistakes on road signs can be solved. 5. Which of the following is TRUE according to the passage? A. All road signs in Beijing prevented tourists knowing where they were. B. Foreign tourists didn’t know the fact that Beijing is an international city. C. Only some parts in Beijing were asked to check their English road signs. D. Many local people in Beijing helped correct signs by calling or emailing. D There are 8 billion humans on Earth. The sun is 150 million kilometers away. The universe (宇宙) may have 200 billion trillion (万亿) stars… As scientists explore the world with more and more advanced (先进的) tools, the numbers used are also becoming bigger. Recently, scientists added four new names for really big and really small measurements (度量): ronna (1027), quetta (1030), ronto (10-27) and quecto (10-30) . Do you find these numbers too big to make sense (有意义)? Don’t worry. Almost all human brains have a problem dealing with big numbers. “While living and evolving (进化), our ancestors (祖先) had no need to develop such a skill,” US mathematician Spencer Greenberg told the science website Gizmodo. Early humans only needed to understand small quantities (数量), like the number of people in the clan (族群), or how many animals they had caught. “So it’s not important to differentiate large from very large from an evolutionary perspective (进化的角度).” However, there are some methods that can help us better understand big numbers. One way is to turn big numbers into something you are familiar with. For example, if imagining 400,000 people is too hard, you can think that an average soccer stadium can hold around 40,000 people. Then 400,000 people mean 10 soccer stadiums of people. Or if you have 1,000 yuan, then a millionaire (百万富翁) has 1,000 times more money than you. Needless to say, there are limits to these methods. “This is why we often just ‘do the math’,” said Greenberg. “We can work with large numbers in calculations and get useful answers. We just can’t necessarily understand the numbers throughout that process.” 1. What might one quetta refer to? A. One followed by 30 zeros. B. A decimal point (小数点) followed by 26 zeros. C. One followed by 27 zeros. D. A decimal point (小数点) followed by 29 zeros. 2. According to Paragraph 3, we can learn that ____ . A. there were no large numbers in ancient times B. ancient people didn’t need to understand big numbers C. human brains don’t have a problem dealing with big numbers D. big numbers appear throughout human evolution 3. According to the story, we can understand big numbers by ____ . A. comparing the numbers to money B. imagining how many people there are on Earth C. thinking about how many soccer stadiums we have D. turning them into something we are familiar with 4. What can we infer from the story? A. Math is the best subject for us to understand the world. B. People cannot understand numbers by doing calculations. C. Extremely large numbers cannot be calculated. D. Calculations help us deal with large numbers. 四、根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。 AI is becoming a big part of our lives. A study shows that many teenagers don’t see AI as just a tool. __1__________ When facing problems, they like to turn to AI for advice. Take 15-year-old Kayla Chege as an example. She asks AI for help with many things, like homework, what to wear, or party ideas! She says it feels like talking to a real friend. __2__________ Over 70% of teens use AI this way, with half using it very often. And 33% discuss (讨论) serious or important topics with AI instead of real people. __3__________ Some say they like AI because it listens patiently and never gets tired of them. Others enjoy how it gives quick answers without judging (评判) them. __4__________ “Using AI too much can be bad,” said Michael Smith, a teen health expert (专家). “Teens need to spend time with real people. If they only talk to AI, they might not be ready for real life. What’s worse, some AI tools can give bad advice. __5__________ ” So AI can be helpful, but real friendships are important too. Parents and teachers should help teens find a healthy balance. A. So why do teens choose AI? B. They see it as a true friend. C. It might be dangerous for teens. D. AI can help with homework and other tasks. E. Kayla is not alone. F. AI can make people feel good about themselves. G. However, experts are worried about this trend (趋势). 五、阅读下面短文，在空白处填入一个适当的单词或括号内单词的正确形式。 Tigers have bright eyes, yellow fur and black stripes. They look so beautiful and cute at __1__________ (born). They can move very fast. They are good at hunting other __2__________ (animal). Tigers like to live as __3__________ family, but baby tigers will live alone when they grow up. __4__________ (sad), tigers are facing a lot of serious problems. In the past, people __5__________ (cut) down large forests and built farms, so they lost much living space. Now, the number of tigers __6__________ (be) becoming smaller and smaller. If people keep taking their land, tigers will have no place __7__________ (live). Also, people kill them __8__________ their fur and bones to make money. If we do not help them, there will be no tigers left in the world. Can you imagine __9__________ will happen to them? Maybe they will die out in the future. A feeling of sadness comes over us when we think of this. I think if we give tigers more protected land and stop people from hunting them, they will live __10__________ (well) than before. Let’s act right now! 六、阅读与表达。 Two weeks later, the children made another note. They held it up as The Green Dragon rushed past. The notice said, “MOTHER IS NEARLY WELL AGAIN. THANK YOU.” The old gentleman saw the notice. He smiled and waved to the children. When they told Mother about the old gentleman, she was very angry with them. “It was wrong to ask a stranger for help,” she said. Then, she stopped being angry and began to cry. The children thought this was worse. “I’m sorry I was angry with you,” she said. “I know you don’t really understand. We’re poor, but we have enough money for food. You must never ever again ask anyone to give you things.” The next day was Roberta’s birthday. Mother told her to go away and stay away until teatime. She felt very lonely in the garden, so she walked out of it and down the lane to the canal. While Roberta was standing on the bridge looking down at the barges (驳船), the doctor came up in his small horse and cart. “Hello, head nurse,” he said. “Do you want a ride home?” Roberta got into the cart and sat next to the doctor. Roberta let the doctor go on to his house and she stayed in the garden until teatime. When she went inside, there were twelve candles on the table, flowers, and some little parcels. As she walked into the room, Mother, Phyllis, and Peter sang a song to her. Mother wrote the words for a birthday song every year. Our darling Roberta No sorrow shall hurt her If we can prevent it Her whole life long. Her birthday’s our party day We’ll make it our great day And give her our presents And sing her our song At the end of the song, Mother said, “Three cheers for Roberta.” And she, Phyllis, and Peter shouted, “Hip! Hip! Hooray!” —Taken from The Railway Children 回答下面问题，每题答案不超过7个词。 1. Who did the children make a note to? ___________________________________________________________ 2.Why was Mother angry with the children? ___________________________________________________________ 3. Where did Roberta meet the doctor? ___________________________________________________________ 4. How old was Roberta? ___________________________________________________________ 5. According to the passage, what would Roberta probably do next? ___________________________________________________________ 第 1 页 共 12 页 学科网（北京）股份有限公司 $